Considerations when buying fertilizer
Look at packaging and instructions
Formal compliance with national quality requirements foliar species should be marked: product name, manufacturer name and address ; agricultural fertilizer registration number , product standard number, name and active ingredient content , weight , date of production ; water power sprayer product is suitable crops for area , using methods and precautions.
Look dissolved
Can put a bag of fertilizer and about 1kg mixed with water to see its dissolution . If the fertilizer is dissolved , no precipitation , indicating that the product quality is good, effective high nutrient , nutrients, easy to be absorbed by crops . If the foliage is not completely dissolved , underwater sediment , indicating that the product quality, but off , easy to plug in when garden pressure sprayer spraying spray nozzle, crop nutrient utilization is not high .
Look formulations and dry blasting degrees
Currently on the market there are two types of solid and liquid fertilizer , in general, better than solid fertilizer liquid fertilizer . Solid fertilizer is divided into two kinds of granular and powdered , granular fertilizer is better than powdered . Because granular fertilizer through special processing , with convenient application , high degree of drying and easy to store and so on.
没有评论:
发表评论